664767580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{433}}^1\times {\mathrm{2647}}^1$

素因数の和:3118

約数の個数: 48

約数和(自身を含む): 1448032320

約数和(自身を除く): 783264740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 433, 580, 866, 1732, 2165, 2647, 4330, 5294, 8660, 10588, 12557, 13235, 25114, 26470, 50228, 52940, 62785, 76763, 125570, 153526, 251140, 307052, 383815, 767630, 1146151, 1535260, 2292302, 4584604, 5730755, 11461510, 22923020, 33238379, 66476758, 132953516, 166191895, 332383790, 664767580]

約数ペア:

[(1, 664767580), (2, 332383790), (4, 166191895), (5, 132953516), (10, 66476758), (20, 33238379), (29, 22923020), (58, 11461510), (116, 5730755), (145, 4584604), (290, 2292302), (433, 1535260), (580, 1146151), (866, 767630), (1732, 383815), (2165, 307052), (2647, 251140), (4330, 153526), (5294, 125570), (8660, 76763), (10588, 62785), (12557, 52940), (13235, 50228), (25114, 26470)]